ELECTRICAL CRAFT HELPER EXAM
2025/2026 QUESTIONS AND ANSWERS
100% PASS
A molecule of matter can be divided chemically into smaller particles called? - ANS atoms
matter consisting of all the same kind of atoms is called an? - ANS element
matter consisting of two or more different kinds of atoms is called a? - ANS compound
the negative charge of a single electron is called a? - ANS unit electrical charge
most of the mass of an atom is in the? - ANS nucleus
when an atom gains an electron, it is called? - ANS negative ion
copper is a good conductor, because the copper atom loosely holds it's? - ANS valence
gold and silver are good conductor of electricity, because the outer orbits have? - ANS one
electron
1 @COPYRIGHT 2025/2026
, when teo negatively charged rods are brought together, they? - ANS repel each other
one ampere is equal to? - ANS 1 coulomb flowing per second
what happens when two unlike materials are rubbed together and then separated? -
ANS one will be positive and the other negative
connecting two or more metallic objects with a wire or metal strap is called? - ANS bonding
grounding minimizes the voltage difference between an object and? - ANS ground
humidity has no effect in controlling a static charge on the surface of? - ANS only liquids.
a static charge is generated by liquids when the liquids are? - ANS moving and contact other
materials
the charges on the surface of a liquid in a container can be made harmless if the container is? -
ANS purged
greater static charges are developed on smooth surfaced materials than on rough surfaced
materials because of the? - ANS larger surface contact
what is applied to rubber or that leather belts to prevent the generation of static charges? -
ANS a conductive dressing
the vest way to remove static electricity from machines is to? - ANS ground the framework
2 @COPYRIGHT 2025/2026
2025/2026 QUESTIONS AND ANSWERS
100% PASS
A molecule of matter can be divided chemically into smaller particles called? - ANS atoms
matter consisting of all the same kind of atoms is called an? - ANS element
matter consisting of two or more different kinds of atoms is called a? - ANS compound
the negative charge of a single electron is called a? - ANS unit electrical charge
most of the mass of an atom is in the? - ANS nucleus
when an atom gains an electron, it is called? - ANS negative ion
copper is a good conductor, because the copper atom loosely holds it's? - ANS valence
gold and silver are good conductor of electricity, because the outer orbits have? - ANS one
electron
1 @COPYRIGHT 2025/2026
, when teo negatively charged rods are brought together, they? - ANS repel each other
one ampere is equal to? - ANS 1 coulomb flowing per second
what happens when two unlike materials are rubbed together and then separated? -
ANS one will be positive and the other negative
connecting two or more metallic objects with a wire or metal strap is called? - ANS bonding
grounding minimizes the voltage difference between an object and? - ANS ground
humidity has no effect in controlling a static charge on the surface of? - ANS only liquids.
a static charge is generated by liquids when the liquids are? - ANS moving and contact other
materials
the charges on the surface of a liquid in a container can be made harmless if the container is? -
ANS purged
greater static charges are developed on smooth surfaced materials than on rough surfaced
materials because of the? - ANS larger surface contact
what is applied to rubber or that leather belts to prevent the generation of static charges? -
ANS a conductive dressing
the vest way to remove static electricity from machines is to? - ANS ground the framework
2 @COPYRIGHT 2025/2026
